Language matters. Gospel means true only because of its association with the first 4 books of the Christian "New Testament." It actually means "good (truthful) tale." Jews should eschew the word gospel as a synonym for truth.

Another book, "ZooTorah" by Rabbi Nissan Slifkan, was banned, in Lakewood and elsewhere, because, relying on earlier accepted authorities, it presented biological evolution as a legitimate possibility and argued that the pronouncements of Talmudic sages on scientific subjects need not be considered authoritative.